mentor Posted April 11, 2008 Share Posted April 11, 2008 (edited) I just finished modelling this tree This is a reference photo: I tried to make similar shape of a crown and now i'm trying to animate this tree Any ideas how to make good animation of leaves and top branches? Snx! lsys_willow_01.rar So, i made a group by $WIDTH attribute to select outer branches, now i need to add... a turbulence field... How? Edited April 11, 2008 by mentor Quote Link to comment Share on other sites More sharing options...
FrankFirsching Posted April 12, 2008 Share Posted April 12, 2008 Looks nice, but I'd like to suggest 2 things: Make your twigs more wiggly. You could add more segments to a twig by not moving forward the complete step ( ~(b)F ), but instead rotate into a certain direction, forward half the way, then rotate back and forward the remaining half way ( ~(0.5*&H~(0.5*^H ) Your tree always branches off 3 twigs. Use probabilities to randomly switch between rules, that branch off 1, 2 or 3 twigs. Quote Link to comment Share on other sites More sharing options...
mentor Posted April 12, 2008 Author Share Posted April 12, 2008 (edited) Snx for help, I'll add probability later and i'll try to rotate twigs And many thanks to David Gary for his great dvd's about L-systems! Edited April 12, 2008 by mentor Quote Link to comment Share on other sites More sharing options...
LEO-oo- Posted April 12, 2008 Share Posted April 12, 2008 Nice job! Post more updates and a few details please! Quote Link to comment Share on other sites More sharing options...
cellchuk Posted April 12, 2008 Share Posted April 12, 2008 nice one :thumbsup: Quote Link to comment Share on other sites More sharing options...
mentor Posted April 12, 2008 Author Share Posted April 12, 2008 (edited) Any ideas how to simulate wind? And how to make "sky sensitive" leaves? Edited April 13, 2008 by mentor Quote Link to comment Share on other sites More sharing options...
HyFrmn Posted April 12, 2008 Share Posted April 12, 2008 Great File. I meant to respond earlier, but got distracted going through your file, very helpful. In regards to simulating wind, there is an example help file using Wire Dynamics to simulate an l-system in the wind, though this may be over kill. Depending on what you would like the wind to look like I would be tempted to use expressions to animate the points. I'm not sure what you mean by "sky sensitive" leaves, do you mean you want them all to be facing up? If so in the past I have used a VOP SOP to bias normals to point upright, without rotating too far from there initial direction. Can't wait to see the next update. Quote Link to comment Share on other sites More sharing options...
mentor Posted April 13, 2008 Author Share Posted April 13, 2008 (edited) lsys_branch_03.rar So, i've discovered how to rotate normals in +Y direction (if they are negative) in VOP's but i still don't know how to make "sky sensitive" leaves Maybe because i don't know what i want to get? For example, leaf's normals always look at the sky, neither the horizon nor ground. Edited April 13, 2008 by mentor Quote Link to comment Share on other sites More sharing options...
mentor Posted April 14, 2008 Author Share Posted April 14, 2008 (edited) At last i finished first step of my journey! Now my leaves are "sky sensitive"!!! Pls, check Branch_Controls node to adjust parameters Next step is to make the whole tree with my branches. Ultimate update! - lsys_branch_03_final.rar Edited April 14, 2008 by mentor Quote Link to comment Share on other sites More sharing options...
cellchuk Posted April 14, 2008 Share Posted April 14, 2008 Any ideas how to simulate wind? And how to make "sky sensitive" leaves? you can try generating some noise patterns in CHOPs and then override the parameters that effects the angles of the branches. CHOPs works very nice with L-systems in getting the wind effect. you just need to find the right parameters to override. nice models :thumbsup: cheers, selcuk Quote Link to comment Share on other sites More sharing options...
mentor Posted April 14, 2008 Author Share Posted April 14, 2008 branch in dynamics movie, 400 kb Quote Link to comment Share on other sites More sharing options...
aqy Posted April 14, 2008 Share Posted April 14, 2008 (edited) Yes, looks good in dynamic. you can add a residual movement branch a little more for more realistic Edited April 14, 2008 by aqy Quote Link to comment Share on other sites More sharing options...
mentor Posted May 13, 2008 Author Share Posted May 13, 2008 (edited) so, this is last update - modeling in houdini and rendering in vray. Edited May 13, 2008 by mentor Quote Link to comment Share on other sites More sharing options...
ihab Posted May 13, 2008 Share Posted May 13, 2008 Amazing!! Any plans to make mantra renders ?? Really nice work :thumbsup: Quote Link to comment Share on other sites More sharing options...
LEO-oo- Posted May 13, 2008 Share Posted May 13, 2008 This nice! I like the lightning and rendering! Quote Link to comment Share on other sites More sharing options...
Andz Posted May 13, 2008 Share Posted May 13, 2008 Great images Mentor! Quote Link to comment Share on other sites More sharing options...
FrankFirsching Posted May 13, 2008 Share Posted May 13, 2008 Nice progress. Quote Link to comment Share on other sites More sharing options...
soulsonic Posted May 13, 2008 Share Posted May 13, 2008 Wow nice work mentor. Quote Link to comment Share on other sites More sharing options...
jason_slab Posted May 14, 2008 Share Posted May 14, 2008 nice work are u using that python connection(can't find the link right now) to render to Vray? jason Quote Link to comment Share on other sites More sharing options...
kumpa Posted May 14, 2008 Share Posted May 14, 2008 ultra nice, very lifelike Quote Link to comment Share on other sites More sharing options...
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